Issues relating to HDD Installs. Once you have installed Knoppix, it basicly becomes debian, so you should check out www.debian.org for information.
DELL PowerEdge R630 8SFF Server 2x E5-2680v4 2.4GHz =28 Cores 128GB H730 4xRJ45
$379.00
Dell R630 Server 2x E5-2620 V4 2.1GHz =16 Cores 128GB DDR4 1x 960GB 2x 1G 2x 10G
$240.00
Dell PowerEdge R620 Server - 128GB RAM, 2x8c CPU, 128Gb SSD/3x900Gb SAS, Proxmox
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Dell Poweredge R720 8x 2.5" Bay Xeon E5-2650 2.8GHz 8 Cores / 64gb No HDD
$114.97
DELL R630 Server 2x E5-2690 V3 2.60GHz = 24 Cores 64GB DDR4 Onboard SATA iDRAC8
$245.00
Dell PowerEdge R630 Server | 2x E5-2680 V4 =28 Cores | H730 | Choose RAM/ Drives
$580.99
Dell R630 Server 2x E5-2667 V3 3.20GHz = 16 Cores 128GB DDR4 2x 480GB SSD iDRAC8
$382.00
Dell Poweredge R720 16-Bay sff 2U Server Intel Xeon E5-2620 2.0Ghz 32GB No HDD
$159.99
Dell Poweredge R220 Server Xeon E3-1270 v3 3.5ghz Quad Core / 16gb / 1x Tray
$139.99
CTO Dell PowerEdge R630 Server, 2x Xeon E5-2620V4, 64GB- 512GB RAM, 480GB SSDs
$327.47